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Патент USA US3049127

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Aug. 14, 1962
E. D. HILLEBRAND
3,049,1 1 6
REMOVABLE OVEN DROP DooR
Filed Jan. 3l, 19.56
2 Sheets-Sheet 1
Àug- 14, 1952
E. D. HILLEBRAND
3,049,116 '
REMOVABLE OVEN DROP DOOR
Filed Jàn. 31, 195e
_
_
2 sheets-»sheet 2
United States Patent
ICC
1
3,049,116
REMOVABLE OVEN DROP DOOR
Earl D. Hillebrand, Kankakee, Ill., assigner to
Geo. D. Roper Corporation
Filed Jan. 31, 1956, Ser. No. 562,418
2 Claims. (Cl. 126-194)
The present invention relates to ranges and more par
ticularly to an oven door structure for such ranges.
3,049,116
Patented Aug. 14, 1952
2
the oven opening formed by the front frame 16 of the
range.
The door 10, in its preferred form, comprises outer and
inner panels 18, 20, secured together in spaced interiitting
relation to provide smooth inner and outer surfaces for
the door. These surfaces are usually finished with a coat
ing of vitreous enamel to enhance their appearance and to
facilitate cleaning. As shown,- the inner panel 20 of the
door is provided with a raised portion 20a defining a
It is a general object of the present invention to provide 10 peripheral ñange 22 thereabout, which ñange fits tightly
an oven drop door which may be easily removed from
against the front frame 16 of the range when the door is
the oven frame so as to facilitate cleaning the oven or
closed.
broiler interior by a housewife. It is an allied object to
In accordance with the ‘present invention, means for
provide such a door which may be removed from the oven
pivotally supporting the door 10 are provided in the form
frame so as to avoid the necessity for a housewife reach
of a pair of novel hinge assemblies 24 which provide »for
ing across the open door to clean the back lining of the
disengagement of the door from the range for cleaning or
oven interior. A further allied object of the invention is
the like. One hinge assembly supports the left side of
to provide an oven door structure which may be disen
the door 10 and the other assembly supports the right side
gaged from the range frame and placed on a counter-top
of the door (see FIG. 5). The left and right hinge assem
20 blies are substantially identical and, for convenience in de
or a table to facilitate cleaning of the door.
An ancillary object of the invention is to provide a re
scribing the invention, the same numerals have been ap
movable oven door structure which is unobtrusive and
plied to corresponding parts of the -two assemblies. It
may be noted that FIGS. 2, 3, 4, 5 and 9 show the parts
of the assembly 24 which support the side of the door
It is another object of the invention to provide an oven 25 10 at the right when facing the oven, whereas FIGS. 6, 7
door which may be easily removed from and replaced on
and 8 show the parts of the assembly 24 which support
the range frame by a serviceman if such should be neces
the left side of the oven door.
_
sary because of damage to the door during transit of the
In the present instance each hinge assembly 24 includes
range or otherwise.
a flat, elongated bracket 26 secured within the range
It is yet another object of the invention to provide a 30 frame at 2S, and a iiat arcuate door supporting member
removable oven door structure which is economically
30 -biased to the frame by a counter-balancing spring 32.
As will be seen, the bracket 26 extends outwardly in a
manufactured, may be simply assembled on a range, and
may be readily replaced once assembled whether the range
horizontal direction through the oven opening `and forms
is on the assembly line or has been placed in a household.
at its outer end a depending leg 26a which carries a door
Other objects and advantages of the invention will be 35 pivot 34. Likewise, the door supporting member 30 ex
come apparent upon reading the attached detailed de~
tends outwardly through the oven opening and forms at
scription and upon reference to the drawings, in which:
its outer end a vertical plate-like extension 30a, also con
FIGURE l is a perspective of a typical range, includ
nected at its lower portion to the pivot 34. In this Way
ing an oven door mounted thereon in accordance with
the bracket 26 and the `door supporting member 30 co
40 operate to form pivotable supporting means for the door
the present invention.
FIG. 2 is an enlarged fragmentary end elevation show- - 10.
ing the manner in which the oven door is mounted upon
Attention may now be given to the means employed
the oven frame, the door being shown in the fully closed
for mounting the door 10 on the hinge assemblies 24.
position.
From FIGS. 3. and 4 it will be seen that the door is
FIG. 3 is a cutaway enlarged fragmentary front eleva 45 adapted to receive the supporting member 30 in an inner
tion of one side of the door taken along the line 3-3 in
pocket 38 formed along each of the lateral portions of
FIG. 2.
the flange 22 between the outer and inner door panels 18,
FIG. 4 is an enlarged fragmentary view similar to FIG.
20, and accessible through elongated vertical flange slots
2, except that the oven door is shown in a fully open
36. Thus, each of the door slots "3'6 is of suñicient length
50 for insertion therethrough of the supporting member ex«
position.
FIG. 5 is an enlarged perspective showing the door in
tension 30a so that the latter is received in nested posi
an open position preliminary to removal thereof from the
tion within the pocket 38.
presents the same smooth exterior appearance as a con
ventional oven door.
Arranged within the pocket 3:8» is a vertically disposed
angle 40 which vis somewhat longer than Ithe slot 36 and
the position of the door shown in FIG. 5, showing in 55 has its inner leg rigidly secured to the outside of the
phantom outline the positions of the door when removed.
inner door panel 20, the inner leg 40a of the angle being
FIG. 7 is an enlarged end elevation showing the details
arranged adjacent the slot yand extending toward the front
of the hinge means employed for mounting the door, the
of the oven. For nesting lthe upper end of the member
latter having been removed from the oven frame.
30 within the angle 40, the upper end of tlhe angle leg
FIG. S is a front elevation of the hinge means shown 60 40a is provided with a downwardly turned roll portion
oven frame.
FIG. 6 is a fragmentary end elevation corresponding to
in FIG. 7.
42 having a slot 42a adapted to receive 'a pilot tab 44
FIG. 9 is an enlarged perspective of the door locking
member employed in practicing the present invention.
extending upwardly from the top of the supporting mem
and embodiments falling within the spirit and scope of the
supporting member 30 within the door pocket 38. With
particular reference to FIGS. 2 and 9, it will be observed
ber extension 30a. The tab 44 is thus adaptable to enter
While the invention is `described in connection with a
the slot 42a and thereby firmly lock the door to the upper
preferred embodiment, it will be understood that it is not 65 end of the member 30.
intended to limit the invention to such embodiment but
Manually releasable means are provided within the
rather it is intended to cover all alternative constructions
hinge assembly 24 for mounting the lower end of the
appended claims.
Turning now to the drawings, the invention is shown 70 that such means includes a flat sector-like locking mem
ber 46 pivotally mounted at 48 on the outer portion of the
a range 14. The door 1t) is adapted to normally close
member 30 adjacent the door pivot 34.
as embodied in a door 10 associated with the oven 12 of
3,049,116
3
4
The member 46 carries on its opposite ends lock
upon cooking the door slightly rearwardly, the pilot tab
ing and finger tabs 50, 52, respectively, the former being
44 is guided into the `angle slot 42a and the member 30
assumes a nested position Within the pocket 38. Next,
the door 10 is lowered to the' horizontal position and the
locking member 46 is manually rotated back to the lock
ing position shown in FIG. 4 so that the tab 50- is dis
posed behind the stop 54 and the oven door is firmly
shaped to latch over -a stop 54 positioned within the
pocket 38 and rigidly fastened in a lateral direction to
the inner angle leg 40a, and the latter serving a purpose
to be `described presently. It will be observed that the
door supporting member extension 30a is provided at its
lower end with an offset 30h to accommodate the locking .
member 46 to thereby permit latching engagement with
the stop S4. The locking member 46 is thus swingable 10
about the pivot 48 between engaged and released positions
of the locking tab and stop 50, 54 to impart removability
to the door 10. 'Ihe normal position of the door 10 upon
the range 14 is shown in FIGS. 2, 3 and 4 wherein the pilot
tab 44 is received in the slot 42o provided by the angle
locked in place.
It is one of the features of the invention that the oven
door 10 may be quickly and easily removed from the
range by la housewife to facilitate cleaning of both the
oven interior and the door itself. In the same manner,
replacement of the dooi- upon the range is simply ac
complished in a matter of seconds and the door is firmly
locked in place to function as a fully pivotable drop door.
40, and the locking member 46 is rotated fully outwardly
I claim:
'
so that the tab 50 is latched over the stop 54.
For facilitating removal of the door 10 from the frame
1. In a range, the combination comprising a frame de
iining -an opening for ian oven or the like, a door for
1‘6, the locking member 46 carries the finger tab 52 which
comprises a laterally disposed plate ladapted to cooperate
normally closing said opening and having an elongated
upon rotation of the member 46 with a suitable notch S6
extending outwardly therefrom, horizontal pivot means
slot adjacent its edge, a bracket secured to said frame and
disposed on the outward portion of said bracket, a door
provided in the outer portion of the bracket 26. The
supporting member extensibly connected at one end to
operation'of the tab and4 notch arrangement 52, 56, will
the frame and pivoted at the other end to said pivot
be described now 'in connection with the procedure to
be followed in removing the door.
25 means, said door 'supporting member being of iiat, elon
gated construction arranged for movement through theV
Removal of the door 10 from the range 14 may be
slot in said door, said door including means releasably
easily yaccomplished in the following manner. The door
engageable by said supporting member and carrying stop
10 is first opened to ythe horizontal position shown in
means thereon, and means independent of said pivot
FIG. 4. This exposes the door slot 36 as well as the
locking member 46 and the finger tab 52‘ carried thereon. 30 means including a manually disengageable locking mem
ber mounted on said door supporting member `and'op
The housewife then simply places her ñnger on the tab
erative to releasably engage said stop means for lock
52 and manually rotates the locking member 46 about
ing the latter two members together while providing for
the pivot 48 until the tab 52 rests against the bracket 26
disengagement thereof to permit bodily removal of the
Iadjacent and just below the notch 56, as shown in phantom
in FIG. 4. This releases the locking tab 50 from engage 35 door from the range for cleaning or the like.
2. In a range, the combination comprising a frame
ment with ythe stop 54, thus detaching the lower portion
defining an opening for an oven- or the like, a door for
of the door from the range proper.
closing said opening, a bracket secured to said frame
Next, as shown in FIG. 6 with pilot tab 44 still engaged
and extending outwardly therefrom, a door supporting
in the slot 42a, the door l10 is swung by the housewife
as «if it wereV to be closed until the finger tab 52. rides 40 member pivoted on the extending end of said bracket,
interíitting means on said door and said member Vfor
up the edge of the bracket 26 and slips into and engages
removably mounting said door on said member, said mem
_the notch S6, which engagement serves to lock the door
ber being biased to counterbalance the Weight of said
movement and prevent any further closing of the hinge
door about the member’s pivot, -a latch pivoted on said
assembly Z4. An upward lifting movement of the door
10 in the direction of the arrows to the successive posi~ 45 member and swingable between avfirst position wherein
said interiitting means Iare locked together and a second
tions shown in phantom in FIG. 6 will then effect dis
position which releases said means but blocks said mem
engagement of the -tab 44 and slot 42a Yso that the en
tire door may be removed from the range. Itwillbe., ber from pivoting toward the frame under the urging of
said bias.
noted that the'door supporting member 30 and the bracket
26 remain yattached to the range `as viewed in FIG. 7, with 50
the finger ltab 52 being firmly seated in the bracket notch
56 to thus maintain the door supporting member in an
outwardly extending condition kagainst the ybias of the v
~counter-balancing spring i312.
In such ya condition the
hinge assembly Z4 is poised for repositioning of the door
thereon.
55
Replacement of the door upon the range is effected by
simply holding the door 10 in the last position shown
verse direction of the arrows so that the supporting mem
ber 30 enters the slot 36 of the door ñange l’22. Then,
References Cited in the file of this patent "
UNITED STATES PATENTS
’
in phantom in FIG. 6 and moving the door in the re
~
60
'
831,801
Roberts ____________ __ Sept. 25,V 1906
-1,000,879
~Amann _________ _.__.__._ Aug. 15, 1911
’ 1,051,538
Barcus _____` _________ __ Ian. 28, 1913
2,378,421
2,541,942
McCormick ___________ __ June 19, 1945
»- Sherman ________ __'____._ Feb. 13, 1951
2,592,333
2,776,655
»» Reeves _____f___________ -_ Apr. 8, 1952
ì Ferguson et al. ________ .__ Jan. 8,1957
2,842,117
Berge et al. ___________ __ Julyv 8, 1958
2,873,737
ShermanV _____________ _„ Feb. 17, 1959
'